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- **-c**, **--cpus** *cpu-list*
- Set the osnoise tracer to run the sample threads in the cpu-list.
- **-d**, **--duration** *time[s|m|h|d]*
- Set the duration of the session.
- **-D**, **--debug**
- Print debug info.
- **-t**, **--trace**\[*=file*]
- Save the stopped trace to [*file|osnoise_trace.txt*].
- **-e**, **--event** *sys:event*
- Enable an event in the trace (**-t**) session. The argument can be a specific event, e.g., **-e** *sched:sched_switch*, or all events of a system group, e.g., **-e** *sched*. Multiple **-e** are allowed. It is only active when **-t** or **-a** are set.
- **--filter** *<filter>*
- Filter the previous **-e** *sys:event* event with *<filter>*. For further information about event filtering see https://www.kernel.org/doc/html/latest/trace/events.html#event-filtering.
- **--trigger** *<trigger>*
- Enable a trace event trigger to the previous **-e** *sys:event*.
- If the *hist:* trigger is activated, the output histogram will be automatically saved to a file named *system_event_hist.txt*.
- For example, the command:
- rtla <command> <mode> -t -e osnoise:irq_noise --trigger="hist:key=desc,duration/1000:sort=desc,duration/1000:vals=hitcount"
- Will automatically save the content of the histogram associated to *osnoise:irq_noise* event in *osnoise_irq_noise_hist.txt*.
- For further information about event trigger see https://www.kernel.org/doc/html/latest/trace/events.html#event-triggers.
- **-P**, **--priority** *o:prio|r:prio|f:prio|d:runtime:period*
- Set scheduling parameters to the osnoise tracer threads, the format to set the priority are:
- - *o:prio* - use SCHED_OTHER with *prio*;
- - *r:prio* - use SCHED_RR with *prio*;
- - *f:prio* - use SCHED_FIFO with *prio*;
- - *d:runtime[us|ms|s]:period[us|ms|s]* - use SCHED_DEADLINE with *runtime* and *period* in nanoseconds.
- **-h**, **--help**
- Print help menu.
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